Homework Answers
Solution:
Given,
=>Number of packets = N
=>Each packet length = L
=>Transmission rate = R
(1)
Explanation:
=>Transmission delay will be equal for all N packets.
=>Transmission delay for last packet = packet length/transmission rate
=>Transmission delay for last packet = L/R
(2)
Explanation:
=>As all N the packets arrive at the router simultaneously so there will be queuing delay based on the order in which they are.
=>For 1st packet, queuing delay = 0
=>For 2nd packet, queuing delay = transmision delay for 1st packet.
=>For 2nd packet, queuing delay = L/R
=>For 3rd packet, queuing delay = transmission delay for 1st packet + transmission delay for 2nd packet
=>For 3rd packet, queuing delay = L/R +L/R
=>For 3rd packet, queuing delay = 2L/R
=>For 4th packet, queuing delay = transmission delay for 1st packet + transmission delay for 2nd packet + transmission delay for 3rd packet
=>For 4th packet, queuing delay = L/R + L/R + L/R
=>For 4th packet, queuing delay = 3L/R
(3)
Explanation:
=>Average queuing delay for first three packets = (queuing delay for first packet + queuing delay for second packet + queuing delay for 3rd packet)/3
=>Average queuing delay for first three packets = (0 + L/R + 2L/R)/3
=>Average queuing delay for first three packets = 3L/R/3
=>Average queuing delay for first three packets = L/R
(4)
Explanation:
=>Average transmission delay for last three packets = (transmisison delay for Nth packet + transmission delay for (N-1)th packet + transmission delay for (N-2)th packet)/3
=>Average transmission delay for last three packets = (L/R + L/R + L/R)/3
=>Average transmission delay for last three packets =3L/R/3
=>Average transmission delay for last three packets = L/R
(5)
Explanation:
=>Total delay for 10th packet = queuing delay for 10th packet + transmission delay for 10th packet
=>Total delay for 10th packet = 9L/R + L/R
=>Total delay for 10th packet = 10L/R
I have explained each and every part with the help of statements attached to it.
Add Answer to:
Suppose N packets arrive simultaneously to a router at which no packets are currently being transmitted...
Computer Network Performance (20 Points) Suppose N packets arrive simultaneously to a router at which no...
Computer Network Performance (20 Points) Suppose N packets arrive simultaneously to a router at which no packets are currently being transmitted or queued. Each packet is of length L and the link has transmission rate R (simple proof is needed). 1111 Font Family . Format B I u 1) What is the transmission time for the last packet? Solution: 2) What is the queue delay for the 4th packet? Solution: 3) What is the average queue delay for the first...
Suppose that N packets are in the queue of a router, and that the router is...
Suppose that N packets are in the queue of a router, and that the router is transmitting a packet. Suppose also that x bits of the currently-being-transmitted packet has been transmitted. Assume that all packets are composed of L bits, and that the output link of the router has a transmission rate of R bits/sec. What is the queuing delay of the Nth (last) packet in the queue of the router?
Suppose that Router A and Router B are connected via a 10 Kbps link, and that...
Suppose that Router A and Router B are connected via a 10 Kbps link, and that the two routers are 20 meters apart. Suppose that Router A is transmitting a packet, and that there are 7 additional packets in the queue of the router, when a new packet arrives at Router A. Suppose that 500 bits of the currently-being-transmitted packet has been transmitted by Router A. Also, assume the following a. Every packet consists of 1000 bits. b. Propagation speed...
Given three packets of size 1500 bytes each are ready inside Computer 1 to be transmitted...
Given three packets of size 1500 bytes each are ready inside Computer 1 to be transmitted onto Link 1. Computer 1 has zero processing delay. Assume each router has zero queuing and zero processing delay. Link 1 is a 10 Mbit/sec link and 5000 km long. Link 2 is 100 Mbits/sec and is 5000 km long. Link 3 is 1000 Mbits/sec and is 5000 km long. Propagation speed is 2 × 10 8 m/s. Assume a router has to receive...
3. Suppose there is exactly one packet switch (or router) between a sending host and a...
3. Suppose there is exactly one packet switch (or router) between a sending host and a receiving host. The transmission rates between the sending host and the switch and between the switch and the receiving host are R1 = 1Mbps and R2 = 2Mbps, respectively. Assuming that the switch uses store-and-forward packet switching, what is the total end-to-end delay to send a packet of length 18000bits? Assume that the propagation speed is 2 * 108 meters/sec, the distance between source...
PROBLEMS 591 8.2 A link with transmission rate R1 Mbi/s is used to forward packets having...
PROBLEMS 591 8.2 A link with transmission rate R1 Mbi/s is used to forward packets having random size e, which is assumed to be uniformly distributed in the discrete set L [1,2,..., 100] kbyte. a) Find the mean transmission time my of a packet along the line. b) Find the probability that the transmission time of a packet is larger than 500 ms. 8.3 A link with transmission rate R, is used to forward packets having random size E, which...
Please Answer all Questions on Networks, They all involve calculation ( 1-9 Questions) "A single router...
Please Answer all Questions on Networks, They all involve calculation ( 1-9 Questions) "A single router is transmitting packets, each of length L bits, over a single link with transmission rate R Mbps to another router at the other end of the link. Suppose that the packet length is L= 12000 bits, and that the link transmission rate along the link to router on the right is R = 1000 Mbps. What is the maximum number of packets per second...
Problem 2 For a given network, the average packet length L = 1024 bytes, packets are...
Problem 2 For a given network, the average packet length L = 1024 bytes, packets are arriving with an average rate = 8 pakets/s, the network is used to support voice call services which can tolerate a maximum end-to-end delay of 150 ms, the average end-to-end distance between any two connected nodes in the network is 1000 km, the average phase velocity for signal travelling throughout the network links is 0.1 speed of light in free space and the call...
1. For TCP end-to-end flow control, suppose the capacity of the receiver buffer is 10 packets. Su...
1. For TCP end-to-end flow control, suppose the capacity of the
receiver buffer is 10 packets. Suppose the packets that are being
queued in the receiver buffer are packets 4, 5, 6, 7, 8, 10, 11.
What is the advertised window size the receiver sent to the sender?
Suppose packet 12 is the last packet sent by the sender. What’s the
effective window size at the sender? Can the sender send out packet
13 at this moment? How about packet...
check my answers for Networking I came up with these answers, can check my answers Question...
check my answers for Networking I came up with these answers, can check my answers Question 1: General What data rate is needed to transmit an uncompressed 4" x 6" photograph every second with a resolution of 1200 dots per inch and 24 bits per dot (pixel)? 691,200 kb/s 28.8 kb/s 8.29 Mb/s 829 Mb/s Question 2: Layering "Layering" is commonly used in computer networks because (check all that apply): -It forces all network software to be written in ‘C’....
Computer Network Performance (20 Points) Suppose N packets arrive simultaneously to a router at which no packets are currently being transmitted or queued. Each packet is of length L and the link has transmission rate R (simple proof is needed). 1111 Font Family . Format B I u 1) What is the transmission time for the last packet? Solution: 2) What is the queue delay for the 4th packet? Solution: 3) What is the average queue delay for the first...
Suppose that N packets are in the queue of a router, and that the router is transmitting a packet. Suppose also that x bits of the currently-being-transmitted packet has been transmitted. Assume that all packets are composed of L bits, and that the output link of the router has a transmission rate of R bits/sec. What is the queuing delay of the Nth (last) packet in the queue of the router?
Suppose that Router A and Router B are connected via a 10 Kbps link, and that the two routers are 20 meters apart. Suppose that Router A is transmitting a packet, and that there are 7 additional packets in the queue of the router, when a new packet arrives at Router A. Suppose that 500 bits of the currently-being-transmitted packet has been transmitted by Router A. Also, assume the following a. Every packet consists of 1000 bits. b. Propagation speed...
PROBLEMS 591 8.2 A link with transmission rate R1 Mbi/s is used to forward packets having random size e, which is assumed to be uniformly distributed in the discrete set L [1,2,..., 100] kbyte. a) Find the mean transmission time my of a packet along the line. b) Find the probability that the transmission time of a packet is larger than 500 ms. 8.3 A link with transmission rate R, is used to forward packets having random size E, which...
Problem 2 For a given network, the average packet length L = 1024 bytes, packets are arriving with an average rate = 8 pakets/s, the network is used to support voice call services which can tolerate a maximum end-to-end delay of 150 ms, the average end-to-end distance between any two connected nodes in the network is 1000 km, the average phase velocity for signal travelling throughout the network links is 0.1 speed of light in free space and the call...
1. For TCP end-to-end flow control, suppose the capacity of the
receiver buffer is 10 packets. Suppose the packets that are being
queued in the receiver buffer are packets 4, 5, 6, 7, 8, 10, 11.
What is the advertised window size the receiver sent to the sender?
Suppose packet 12 is the last packet sent by the sender. What’s the
effective window size at the sender? Can the sender send out packet
13 at this moment? How about packet...
Most questions answered within 3 hours.
-
When Maria Acosta bought a car 2 and a half
years ago, she borrowed $11,000 for...
asked 3 minutes ago -
package rectangle;
public class Rectangle {
private int height;
private int width;
public...
asked 4 minutes ago -
The Yankee's have a contract with their newly hired manager that
requires a lump sum payment...
asked 24 minutes ago -
A travelling salesman sells milkshake mixing machines and on
average sells 8.9 machines per month. He...
asked 29 minutes ago -
what's the danger in the fact that the market value of a stock
is based on...
asked 43 minutes ago -
Describe how do you feel about the post below and
why?
Listening to the podcast reaffirmed...
asked 52 minutes ago -
To start an avalanche on a mountain slope, an artillery shell is
fired with an initial...
asked 1 hour ago -
The population of bacteria in a culture can be modeled by P left
parenthesis t right...
asked 1 hour ago -
Which factors can prevent permanent fixation of an allele (i.e.
maintain genetic diversity)? Hint: You're going...
asked 1 hour ago -
Compare a two-year bond with two successive one-year bonds in a
situation in which an investor...
asked 1 hour ago -
Chapter 6
Search the internet and find a newspaper example of a price
ceiling, price floor...
asked 1 hour ago -
Sarah Bates, calendar year taxpayer, started a new business on
October 8th. A number of start-up...
asked 1 hour ago